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Reptiles & Amphibians of Wisconsin

The reptiles & amphibians most often spotted in Wisconsin, ranked by recent research-grade observations.

56,531
recent observations
50
species listed
50
reptiles & amphibians

Naturalists have logged 56,531 research-grade observations across the 50 most-recorded species in Wisconsin. The most frequently seen is the American Toad, with 9,583 recorded sightings.

Most-observed reptiles & amphibians in Wisconsin

American Toad
Anaxyrus americanus
9,583 observations
Painted Turtle
Chrysemys picta
6,042 observations
North American Green Frog
Lithobates clamitans
5,691 observations
Common Garter Snake
Thamnophis sirtalis
5,370 observations
Northern Leopard Frog
Lithobates pipiens
3,326 observations
Common Snapping Turtle
Chelydra serpentina
3,113 observations
Spring Peeper
Pseudacris crucifer
2,485 observations
Wood Frog
Lithobates sylvaticus
2,252 observations
American Bullfrog
Lithobates catesbeianus
1,825 observations
Blue-spotted Salamander
Ambystoma laterale
1,769 observations
Red-bellied Snake
Storeria occipitomaculata
1,346 observations
Common Watersnake
Nerodia sipedon
1,291 observations
DeKay's Brownsnake
Storeria dekayi
1,062 observations
Eastern Foxsnake
Pantherophis vulpinus
1,024 observations
Blanding's Turtle
Emydoidea blandingii
791 observations
Eastern Milksnake
Lampropeltis triangulum
755 observations
Eastern Hognose Snake
Heterodon platirhinos
754 observations
Boreal Chorus Frog
Pseudacris maculata
723 observations
Gray Treefrog
Dryophytes versicolor
666 observations · iNaturalist
Eastern Red-backed Salamander
Plethodon cinereus
650 observations
Spiny Softshell
Apalone spinifera
612 observations
Northern Map Turtle
Graptemys geographica
585 observations
Smooth Greensnake
Opheodrys vernalis
405 observations
Eastern Tiger Salamander
Ambystoma tigrinum
399 observations
Pickerel Frog
Lithobates palustris
357 observations
Common Five-lined Skink
Plestiodon fasciatus
303 observations
Western Foxsnake
Pantherophis ramspotti
296 observations
Gopher Snake
Pituophis catenifer
254 observations
Ring-necked Snake
Diadophis punctatus
247 observations
Eastern Newt
Notophthalmus viridescens
245 observations
Timber Rattlesnake
Crotalus horridus
243 observations
Spotted Salamander
Ambystoma maculatum
238 observations
Wood Turtle
Glyptemys insculpta
224 observations
Butler's Garter Snake
Thamnophis butleri
187 observations
Prairie Skink
Plestiodon septentrionalis
145 observations
Four-toed Salamander
Hemidactylium scutatum
140 observations
Ouachita Map Turtle
Graptemys ouachitensis
130 observations
Common Mudpuppy
Necturus maculosus
121 observations
Six-lined Racerunner
Aspidoscelis sexlineatus
115 observations · iNaturalist
Mink Frog
Lithobates septentrionalis
110 observations
Pond Slider
Trachemys scripta
97 observations
False Map Turtle
Graptemys pseudogeographica
95 observations
Blanchard's Cricket Frog
Acris blanchardi
88 observations
Plains Garter Snake
Thamnophis radix
68 observations
North American Racer
Coluber constrictor
63 observations
Eastern Musk Turtle
Sternotherus odoratus
59 observations
Central Ratsnake
Pantherophis alleghaniensis
57 observations
Slender Glass Lizard
Ophisaurus attenuatus
50 observations
Western Ratsnake
Pantherophis obsoletus
43 observations
Ornate Box Turtle
Terrapene ornata
37 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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